ranney



6N0 Model.) 2 Sheets-Sheet. 1.

D. D.RANNEY. CARBURBTOR.

Patented Sept-.30, 1890.

i No. 437,454.

we nomshcrma 00.. PNOTWTNQ, mam-ma n, c.

2 Sheets-Sheet (No Model.) 7

' D. D. RANNEY.

GARBURETOR.

Patented Sepia. 310, 1890.:

UNITED STATES PATENT OFF1cE,

'DARWIN D. RANNEY, OF LElVISTOl/VN, ILLINOIS, ASSIGNOR TO HENRY W.PHELPS AND SARAH J. RANNEY, 0F SAME PLACE.

CARBU RETO R.

SPECIFICATION forming part of Letters Patent No. 437,454, datedSeptember 30, 1890.

Application filed May 2'7, 1890. Serial No. 353,333- (llo model.)

To all whom it may concern:

Be it known that I, DARWIN D. RANNEY, a citizen of the United States,residing at Lewistown, Illinois, have invented certain new and usefulImprovements in Carburetors, of which the following is a specification.

My invention relates to certain improvements in a carburetor comprisingtwo vessels concentrically arranged, the inner one bottomless and theouter one coverless, and containing a bodyof water supporting on itssurface gasoline orother hydrocarbon oil,through which air is forced,andforms a vapor, which is conveyed away for heating or lighting.

A feature of my invention relates to novel means for regulating thevapor-pressure, said means comprising a valve or cook in the airsupplypipe, which is automatically controlled by the movement of thevaporcontaining vessel.

Another feature of my improvement relates to novel means of supplyingthe oil to the inner vessel, and comprises a receptacle or tank incommunication, by means of suitable pipes, with the interior of saidvessel, and which tank is refilled from barrels without interrupting theoperation of the carburetor and Without any exposure of the oil While itis being transferred. I elfect this object by providing a conductingpipe or hose from the tank to the barrel or other receptacle containingthe oil, and I also provide a branch air-pipe connecting with the mainair-pipe and with the barrel or other oil-receptacle, so that theaircurrent passing through the branch pipe is utilized to force the oilout of the barrel into the tank, and then by connecting the air-supplypipe with the top of the tank the oil may be forced out through suitablepipes and discharged into or upon the body of the water within the innervessel.

In the accompanying drawings, Figure 1 is a central sectional elevation,the oil-barrel, tank, and a part of the pipe system being shown in sideelevation. Fig. 2 is a sectional plan view of the inner vessel of thecarburetor and showing the outer vessel in plan, the section being takenon the line 2 2 of Fig. 1.

In the drawings, let A represent an outer vessel open at the top, withinwhich a bottomless vessel 13 is adapted to telescope, and having bypreference the anti-friction rollers 19, adapted to run on the guides O.

Beneath the closed top of the vessel B,Which top is preferably conicalin form, is placed suitable packing D, and when the vessel B has reachedits lowest limit of movementthis packing will rest upon and seal theopenend of a pipe E, through which the vapor is conducted away to theplace of use.

F represents an air-pipe, which will be con nected at a point outsidethe vessel A with an air-pump, and is preferably conducted upwardlyoutside of the vessel A, and then descends through the space between thewalls of the vessels A and B near to the bottom of A, and is thencecarried inwardly, branching into the parts f f Said branches deliverinto the interior of the tank B below the waterline, (indicated at 00to.) At some convenient point in the air-pipe F, as at G, a valve isprovided, and the valve-stem g is connected by a link H with the vesselBas, for example, by means of the projecting rigid arm b. It is evidentnow that as the vessel B is moved upwardly under the pressure of theforming vapor the valve will be operated through the intervention of theconnecting-link and the air-supply will thus be out off when the innervessel has reached the point indicated by the dotted lines of Fig. 1. Bythis means the airsupply is automatically controlled, and as the vaporis withdrawn from the interior of the vessel B the latter begins todescend, opening, through'the intervention of the link, the valve at G,so as to permit the passage of air and thus providing for the formationof the vapor by supplying air as fast as the vapor is with drawn. Theaction is entirely automatic, and a uniform pressure of the vapor isthereby insured.

The hydrocarbon may be contained in any suitable receptacle-as, forexample, the barrel Iand I transfer the oil from this barrel to anintermediate feed-tank, which is marked J. To accomplish this withoutinterrupting the operation of the carburetor and Without exposing theoil, I use by preference a flexible hose K, indicated by the dottedlines in Fig. 1, which hose communicates with the tank J, preferablynear its top.

A branch pipe L taps the main air-pipe F and communicates with theinterior of the barrel I through the upper side, preferably by means ofthe short flexible section l. A cock Z is provided in this branchair-pipe in order to control the passage of air therethrough. Astub-pipe m is also provided at the top of the tank J, and the hose Z isadapted to connect the branch pipe L and this stub m when desired.

An oil-supply pipe (marked N) leads'from' the bottom of the tankJ and isconducted up outside the vessel A, and thence descends through the spacebetween A and B and is again upturned, delivering just below thewater-line.

In operation, if the tank and barrel be both filled with oil and thevessel A filled with water to the line a: w, before any vapor is formedthe inner vessel B will be at the lowest limit of its movement, thepacking resting on top of the service-pipe. Now, if the pump be set inmotion and the valves G and I opened and the hose Zconnected with thestub m, the principal current of air will pass through the pipe F and beforced upwardly through the water. At the same time a portion of theaircurrent will pass by way of the stub m and flexible hose Z and willforce the oil out 'through the pipe N, thus maintaining a layer of oilon topof the water, through which the air will pass, thus enriching itand forming the vapor. This operation may be continued until the tank isexhausted, and then with- 4 out stopping the pump a connect-ion is madebetween the branch air-pipeL and the top of the barrel, and the currentof air will then force the oil out of the barrel into the tank.

The feature of automatically sealing the service-pipe when the innervessel or holder is practically void of vapor is exceedingly important,because if this be not done and a jet or burner be flaming at any'pointalong the line of the service-pipe the vapor contained in the pipe willbe ignited and the flame will pass by way of the pipe into thecarburetor andignite the oil or vapor therein and thus cause anexplosion. While the vapor is formingin the holder the pressure thereinis equal to or greater than the back-pressure in the service-pipe, andtherefore ignition by way of the service-pipe is prevented.

I claim 1. The combination, with a carburetor comprising twoconcentrically-arranged vessels, the inner one bottomless and the outerone coverless, of a tank to contain a hydrocarbon oil and communicatingby a suitable. pipe with the inner vessel, an air-pipe to supply airunder pressure to the inner vessel below the water-line, a barrel orequivalent receptacle to contain a supply of oil, and a branch pipeadapted to be connected at will with the oil-supply vessel and with thetop of the tank, whereby the oil may be transferred to the tank andforced thereout into the carburetor, substantially as described.

2. In a carburetor, the combination, with two vessels concentricallyarranged, the inner one bottomless and the outer one coverless andadapted to contain water, of means for supplying oil to the inner vesselabove the water, a pipe to deliver air under pressure within the body ofwater in the inner tank, and a pipe to conduct away the vapor, said pipehaving an open end terminating beneath the top of the inner vessel andadapted to support the inner vessel at its lowest limit of movement andto be sealed thereby, substantially as described.

DARWIN D. RANNEY.

